To install, first you need to get OpenIV.
Start it and follow these simple steps.

1. In OpenIV, navigate to GTAV/x64e/levels/gta5/vehicles.rpf
2. At the top of the OpenIV window, there is a blue and yellow checkered shield.
Click the shield to enter "Edit mode" so you can change files.
3. Double click vehshare.ytd in the OpenIV list.
4. In vehshare.ytd, find the file police_new2. 
5. At the top of the window, find the "Replace" button. Click this button
and find the police_new2 file, and click on it. This replaces the old skin with the new skin.

You should now have the skins ready to go! To double check if it worked, find
police3.yft in the same vehicles.rpf list and double click it. If it looks like
a VCPD car, it worked!

Created by Wake